A straightening device for steel structure production

Abstract

The utility model relates to the technical field of steel structure correction, and disclose a kind of correction device for steel structure production, including bottom plate, the front and rear ends of bottom plate are detachably connected with vertical board by bolt, two vertical boards are fixedly connected by two reinforcing bars, driving shaft is rotatably connected between two vertical boards, the rear end of driving shaft is provided with driving mechanism, adjusting mechanism is hinged between two vertical boards by hinge shaft, the inside of adjusting mechanism is rotatably connected with driven shaft, the outside of driving shaft and driven shaft is detachably connected with straightening wheel, recess is set up on two straightening wheels, adjusting mechanism is used to adjust the relative distance between two straightening wheels, the utility model is adjusted by setting adjusting mechanism, adjusting mechanism adjusts the relative distance between two straightening wheels, adjusting mechanism can accurately control the pressure between straightening wheel, so different diameter and different bending degree steel pipe can be handled, and versatility is strong.

Description

Technical Field

[0001] This utility model relates to the field of steel structure straightening technology, specifically a straightening device for steel structure production. Background Technology

[0002] In the steel structure manufacturing industry, steel straightening is one of the key processes to ensure product quality. During the processing and manufacturing of steel structures, various factors, such as the initial bending of raw materials, thermal deformation during processing, or mechanical stress, often result in varying degrees of bending, twisting, and other deformations. If these deformations are not corrected, they will seriously affect the installation accuracy, load-bearing capacity, and overall structural stability of steel structure components, thereby reducing the safety and service life of steel structure buildings or facilities.

[0003] While some existing straightening devices have achieved mechanization to a certain extent, they still have shortcomings in structural design and functional implementation. The spacing between the straightening wheels in some straightening devices is not flexible and convenient enough, making it difficult to accurately control the two straightening wheels. This results in them being unable to adapt to the straightening of different types of steel, thus affecting the straightening efficiency.

[0004] Therefore, developing a steel structure production straightening device that is structurally sound, versatile, flexible in adjustment, and effective in straightening is of great practical significance in order to meet the steel structure production industry's demand for high-quality and high-efficiency straightening equipment. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this invention is to solve the problem that the spacing adjustment between the straightening wheels in some straightening devices is not flexible and convenient enough, and it is difficult to accurately control the two straightening wheels, resulting in the inability to adapt to the straightening of different types of steel and affecting the straightening efficiency. Therefore, a straightening device for steel structure production is proposed.

[0006] (II) Technical Solution The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A straightening device for steel structure production includes a base plate, with vertical plates detachably connected to both ends of the base plate by bolts. Two vertical plates are fixedly connected by two reinforcing rods, and a drive shaft is rotatably connected between the two vertical plates. A drive mechanism is provided at the rear end of the drive shaft. An adjustment mechanism is hinged between the two vertical plates by a hinge shaft. A driven shaft is rotatably connected to the inner side of the adjustment mechanism. Straightening wheels are detachably connected to the outer sides of both the drive shaft and the driven shaft. Grooves are provided on both straightening wheels. The adjustment mechanism is used to adjust the relative distance between the two straightening wheels.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Preferably, the drive mechanism includes a rocker arm, the rear end of the drive shaft is fixedly connected to the rocker arm, and the rear end of the rocker arm is fixedly connected to a handle.

[0009] Preferably, the adjustment mechanism includes adjustment arms, two adjustment arms are hinged between the two vertical plates via a hinge shaft, a threaded sleeve is rotatably connected between the two adjustment arms, a screw is threadedly connected to the inner side of the threaded sleeve, a handwheel is fixedly connected to the outer side of the screw, a limit sleeve is provided between the two vertical plates, and the screw is rotatably limited and connected to the inner side of the limit sleeve.

[0010] Preferably, a locking bolt is provided between the two vertical plates, the limiting sleeve is fixedly connected to the outside of the locking bolt, a washer is sleeved on the outside of the locking bolt, and a locking nut is threadedly connected to the outside of the locking bolt. The washer is located between the front vertical plate and the locking nut.

[0011] Preferably, the base plate has two mounting holes.

[0012] Preferably, the inner sides of both grooves are provided with resistance-enhancing textures.

[0013] (III) Beneficial Effects Compared with the prior art, the technical solution of this application has the following beneficial technical effects: This invention features an adjustment mechanism that adjusts the relative distance between two straightening rollers. This mechanism allows for precise control of the pressure between the straightening rollers, enabling it to handle steel pipes of different diameters and degrees of curvature, thus offering strong versatility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the relative positional relationship between the drive shaft and the drive mechanism of this utility model; Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model; Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model.

[0015] In the diagram: 1. Base plate; 2. Vertical plate; 3. Reinforcing rod; 4. Drive shaft; 5. Drive mechanism; 51. Rocker arm; 52. Handle; 6. Adjustment mechanism; 61. Adjusting arm; 62. Threaded sleeve; 63. Screw; 64. Handwheel; 65. Limit sleeve; 7. Driven shaft; 8. Straightening wheel; 9. Groove; 10. Locking bolt; 11. Washer; 12. Locking nut; 13. Mounting hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the embodiments, by Figure 1-4 A straightening device for steel structure production is provided, comprising a base plate 1, with vertical plates 2 detachably connected to both ends of the base plate 1 by bolts, two vertical plates 2 being fixedly connected by two reinforcing rods 3, a drive shaft 4 being rotatably connected between the two vertical plates 2, a drive mechanism 5 being provided at the rear end of the drive shaft 4, an adjustment mechanism 6 being hinged between the two vertical plates 2 by a hinge shaft, a driven shaft 7 being rotatably connected to the inner side of the adjustment mechanism 6, and straightening wheels 8 being detachably connected to the outer sides of both the drive shaft 4 and the driven shaft 7, each of the two straightening wheels 8 having a groove 9, and the adjustment mechanism 6 being used to adjust the relative distance between the two straightening wheels 8.

[0018] With the above settings, the relative distance between the two straightening rollers 8 is adjusted by the adjusting mechanism 6 according to the diameter of the steel pipe to be straightened. This distance is usually slightly smaller than the diameter of the steel pipe to ensure that the straightening rollers 8 can apply sufficient pressure to the steel pipe. The drive mechanism 5 is started, driving the drive shaft 4 and the straightening rollers 8 on it to rotate. The operator feeds the bent steel pipe from one end of the device at a certain angle between the two straightening rollers 8. The actively rotating straightening rollers 8 "bite" the steel pipe through friction and transport it forward. During the rotation and forward movement of the steel pipe, it is subjected to strong rolling pressure from the upper and lower grooves 9. The grooves 9 match the outer diameter of the steel pipe, ensuring that the pressure is evenly applied to the circumference of the steel pipe, avoiding flattening or scratching. When the steel pipe passes through this huge pressure zone, its fibrous structure undergoes plastic deformation: the originally convex (fiber under pressure) parts are stretched, and the originally concave (fiber under tension) parts are compressed. After repeated rolling (the steel pipe itself also rotates), the internal stress is redistributed and eliminated, and the bent part is gradually straightened. The straightened steel pipe is fed out from the other end of the device. The operator inspects the straightness of the pipe. If the straightening fails to meet the standard in one pass, the adjusting mechanism 6 can be fine-tuned to increase the pressure, and the pipe can be fed back in for a second straightening until the required straightness is achieved. The adjusting mechanism 6 allows precise control of the pressure between the straightening rollers 8, enabling the handling of steel pipes of different diameters and degrees of curvature, thus offering strong versatility. The groove 9 ensures uniform pressure, not only correcting bends but also improving the roundness of the steel pipe to some extent.

[0019] Reference Figure 1-4The drive mechanism 5 includes a rocker arm 51, the rear end of the drive shaft 4 is fixedly connected to the rocker arm 51, and the rear end of the rocker arm 51 is fixedly connected to the handle 52. With the above-described structure, the operator uses their arm and body to push or pull the handle 52 in one direction (usually clockwise or counterclockwise, depending on operating habits). Since the handle 52 is located at the end of the rocker arm 51, it forms a lever that saves effort. The operator applies a relatively small force to the handle 52, generating a sufficiently large torque (rotational force) at the root of the rocker arm 51 (i.e., where it connects to the drive shaft 4). This torque is directly transmitted through the rocker arm 51 to the drive shaft 4, forcing the drive shaft 4 to rotate. The rotation of the drive shaft 4 causes the drive straightening wheel 8 mounted above it to rotate synchronously. The operator feeds the steel pipe to be straightened into the gap between the two straightening wheels 8 from the front. The rotating drive straightening wheel 8 "bites" the steel pipe through friction and drags it forward. Simultaneously, the steel pipe contacts the driven straightening wheel 8 above, and the friction drives the driven straightening wheel 8 and the driven shaft 7 to rotate accordingly. The operator needs to continuously and evenly rock the rocker arm 51 to maintain a stable rotation speed of the drive straightening wheel 8. Under the action of the steadily rotating straightening wheel 8, the steel pipe is continuously fed in, rolled, and ejected, completing the straightening process. The operator's rocking speed directly determines the speed of the straightening operation. The drive mechanism 5 can also be configured as a motor connected to a reducer to provide greater torque, enabling the straightening of steel pipes with greater hardness and thickness.

[0020] Reference Figure 1-4 The adjustment mechanism 6 includes an adjustment arm 61. Two adjustment arms 61 are hinged between two vertical plates 2 via a hinge shaft. A threaded sleeve 62 is rotatably connected between the two adjustment arms 61. A screw 63 is threadedly connected to the inner side of the threaded sleeve 62. A handwheel 64 is fixedly connected to the outer side of the screw 63. A limit sleeve 65 is provided between the two vertical plates 2. The screw 63 is rotatably limited and connected to the inner side of the limit sleeve 65. A locking bolt 10 is provided between the two vertical plates 2. The limit sleeve 65 is fixedly connected to the outer side of the locking bolt 10. A washer 11 is sleeved on the outer side of the locking bolt 10. A locking nut 12 is threadedly connected to the outer side of the locking bolt 10. The washer 11 is located between the front vertical plate 2 and the locking nut 12. With the above structural setup, firstly, the locking nut 12 is loosened counterclockwise. After loosening, the locking nut 12 no longer applies pressure to the washer 11 and the front vertical plate 2, thereby releasing the locking state of the limiting sleeve 65 (fixed by the locking bolt 10). At this time, the entire adjustment mechanism 6 is in an "adjustable" free state. The operator rotates the handwheel 64 clockwise. The handwheel 64 drives the screw 63 to rotate together. Since the limiting sleeve 65 is fixed and does not rotate (temporarily not locked, but limited to rotation by the locking bolt 10), the clockwise rotation of the screw 63 will drive the limiting sleeve 65 to move to the right (i.e., away from the handwheel 64) along the screw 63. Thus, the threaded sleeve 62 and the limiting sleeve 65 move closer to each other on the screw 63. The threaded sleeve 62 moves to the right, pushing the upper ends of the adjusting arms 61 at both ends, causing the two adjusting arms 61 to rotate downwards about the hinge axis connecting them to the vertical plate 2. The lower end of the adjusting arm 61 drives the driven shaft 7 and its driven straightening wheel 8 downwards, thereby reducing the gap between the shaft and the driving straightening wheel 8 below and increasing the straightening pressure on the steel pipe. After adjusting to the required gap, the locking nut 12 needs to be tightened clockwise. When tightening the locking nut 12, it applies a huge pressure to the front vertical plate 2 through the washer 11 (which increases the contact surface and prevents damage to the vertical plate 2). This pressure is ultimately transmitted through the vertical plate 2 and the locking bolt 10, firmly fixing the limit sleeve 65 in its current position, preventing it from moving any further. Once the limit sleeve 65 is locked, the position of the entire adjusting mechanism 6 (including the screw 63, threaded sleeve 62, and adjusting arm 61) is completely locked, ensuring that the gap does not change when subjected to the reaction force of the steel pipe during the straightening process, thus guaranteeing the straightening accuracy.

[0021] Reference Figure 1-4 The base plate 1 has two mounting holes 13. With the above-described structural design, mounting holes 13 allow the entire straightening device to be securely fixed to a workbench, foundation, or other sturdy base using bolts or anchor bolts. During the straightening process, the device needs to withstand enormous torque, radial force, and vibration transmitted from the steel pipe. Without proper securing, the entire device could move, tilt, or even jump, which is extremely dangerous.

[0022] Reference Figure 1-4 Among them, the inner sides of both grooves 9 are provided with resistance-increasing textures; Through the above structural design, the resistance-enhancing grooves significantly increase the coefficient of friction between the straightening roller 8 and the steel pipe surface. The straightening process relies on the friction between the straightening roller 8 and the steel pipe to "grip" and pull the steel pipe forward. If the surface is smooth, slippage is very likely to occur, causing the steel pipe to be unable to be fed smoothly or the straightening roller 8 to spin idly, making the straightening operation impossible. The resistance-enhancing grooves effectively prevent slippage through mechanical gripping, protecting the workpiece surface and improving the quality of the finished product. If slippage occurs, severe sliding friction will occur between the straightening roller 8 and the steel pipe surface, like a brake, leaving long and deep scratches (filamentation) on the steel pipe surface, seriously damaging the appearance and quality of the workpiece. The resistance-enhancing grooves ensure that the relationship between the straightening roller 8 and the steel pipe is always pure rolling friction. The steel pipe is firmly "gripped" and moves forward and rotates with the rotation of the straightening roller 8, avoiding relative slippage and thus protecting the surface smoothness of the steel pipe.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straightening device for steel structure production, characterized in that, The base plate (1) is detachably connected to the front and rear ends of the base plate (1) by bolts. The two vertical plates (2) are fixedly connected by two reinforcing rods (3). The two vertical plates (2) are rotatably connected by a drive shaft (4). A drive mechanism (5) is provided at the rear end of the drive shaft (4). An adjustment mechanism (6) is hinged between the two vertical plates (2) by a hinge shaft. A driven shaft (7) is rotatably connected to the inner side of the adjustment mechanism (6). Straightening wheels (8) are detachably connected to the outer sides of both the drive shaft (4) and the driven shaft (7). Grooves (9) are provided on both straightening wheels (8). The adjustment mechanism (6) is used to adjust the relative distance between the two straightening wheels (8).

2. The straightening device for steel structure production according to claim 1, characterized in that: The drive mechanism (5) includes a rocker arm (51), the rear end of the drive shaft (4) is fixedly connected to the rocker arm (51), and the rear end of the rocker arm (51) is fixedly connected to a handle (52).

3. The straightening device for steel structure production according to claim 1, characterized in that: The adjustment mechanism (6) includes an adjustment arm (61). Two adjustment arms (61) are hinged between the two vertical plates (2) via a hinge shaft. A threaded sleeve (62) is rotatably connected between the two adjustment arms (61). A screw (63) is threadedly connected to the inner side of the threaded sleeve (62). A handwheel (64) is fixedly connected to the outer side of the screw (63). A limit sleeve (65) is provided between the two vertical plates (2). The screw (63) is rotatably limited and connected to the inner side of the limit sleeve (65).

4. A straightening device for steel structure production according to claim 3, characterized in that: A locking bolt (10) is provided between the two vertical plates (2). The limiting sleeve (65) is fixedly connected to the outside of the locking bolt (10). A washer (11) is sleeved on the outside of the locking bolt (10). A locking nut (12) is threadedly connected to the outside of the locking bolt (10). The washer (11) is located between the front vertical plate (2) and the locking nut (12).

5. A straightening device for steel structure production according to claim 1, characterized in that: Two mounting holes (13) are provided on the base plate (1).

6. A straightening device for steel structure production according to claim 1, characterized in that: The inner sides of both grooves (9) are provided with resistance-enhancing textures.

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